Publication Date:
2011-12-06
Description:
We herein describe a set of experiments used to study the effect of heating schedule on phase formation during the fabrication of Ti 3 SiC 2 -based materials from Ti–SiC powder mixtures by means of pressureless sintering. We found that combustion was initiated at a temperature of about 1330°C, which resulted in the formation of Ti -rich eutectic melt followed by crystallization of Ti 3 SiC 2 . It was shown that when preannealing was performed at 1150°C, no further combustive process could occur, and an intermediate, nonequilibrium phase composition, consisting of Ti 5 Si 3 C x , TiC , and SiC remained until the end of the heat treatment. We herein discuss the mechanistic interpretation of this behavior.
Print ISSN:
1546-542X
Electronic ISSN:
1744-7402
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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